Dual-Peak Electrogenerated Chemiluminescence of Carbon Dots for Iron Ions Detection
文献类型：期刊论文
| 作者 | Zhang, Pengjia1; Xue, Zhenjie2; Luo, Dan2; Yu, Wei2; Guo, Zhihui1; Wang, Tie2 |
| 刊名 | ANALYTICAL CHEMISTRY
 |
| 出版日期 | 2014-06-17 |
| 卷号 | 86期号:12页码:5620-5623 |
| ISSN号 | 0003-2700 |
| DOI | 10.1021/ac5011734 |
| 英文摘要 | Carbon dots (CDs) have rigorously been investigated on their unique fluorescent properties but rarely their electrogenerated chemiluminescence (ECL) behavior. We are here to report a dual-peak ECL system of CDs, one at -2.84 V (ECL-1) and the other at -1.71 V (ECL-2) during the cyclic sweep between -3.0 and 3.0 V at scan rate of 0.2 V s(-1) in 0.1 M tetrabutyl ammonium bromide (TBAB) ethanol solution, which is more efficiency to distinguish metallic ions than single-peak ECL. The electron transfer reaction between individual electrochemically reduced nanocrystal species and coreactants led to ECL-1, in which the electron injected to the conduction band of CDs in the cathodic process. Ion annihilation reactions induced direct formation of exciplexes that produced another ECL signal, ECL-2. ECL-1 showed higher sensitivity to the surrounding environment than ECL-2 and thus was used for ECL detection of metallic ions. Herein, we can serve as an internal standard method to detect iron ions. A linear relationship of the intensity ratio R of ECL-1 and ECL-2 to iron ions was observed in the concentration extending from 5 X 10(-6) 8 X 10(-5) M with a detection limit of 7 x 10(-7) M. |
| 语种 | 英语 |
| WOS记录号 | WOS:000337643500005 |
| 出版者 | AMER CHEMICAL SOC |
| 源URL | [http://ir.iccas.ac.cn/handle/121111/52565]  |
| 专题 | 中国科学院化学研究所 |
| 通讯作者 | Guo, Zhihui |
| 作者单位 | 1.Shaanxi Normal Univ, Sch Chem & Chem Engn, Key Lab Analyt Chem Life Sci Shaanxi Prov, Xian 710062, Peoples R China 2.Chinese Acad Sci, Inst Chem, Key Lab Analyt Chem Living Biosyst, Beijing Natl Lab Mol Sci, Beijing 100190, Peoples R China |
| 推荐引用方式 GB/T 7714 | Zhang, Pengjia,Xue, Zhenjie,Luo, Dan,et al. Dual-Peak Electrogenerated Chemiluminescence of Carbon Dots for Iron Ions Detection[J]. ANALYTICAL CHEMISTRY,2014,86(12):5620-5623. |
| APA | Zhang, Pengjia,Xue, Zhenjie,Luo, Dan,Yu, Wei,Guo, Zhihui,&Wang, Tie.(2014).Dual-Peak Electrogenerated Chemiluminescence of Carbon Dots for Iron Ions Detection.ANALYTICAL CHEMISTRY,86(12),5620-5623. |
| MLA | Zhang, Pengjia,et al."Dual-Peak Electrogenerated Chemiluminescence of Carbon Dots for Iron Ions Detection".ANALYTICAL CHEMISTRY 86.12(2014):5620-5623. |
入库方式： OAI收割
来源：化学研究所
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